Crop Improvement Introduction

The general goal of plant breeding is the improvement of plants for human benefit, fulfilling the needs of both producers and consumers. However, the exponential growth of human population, the effects of the global warming on the crop environments and the need to stop the negative impact of agriculture on the ecosystems, are demanding new and urgent specific goals (of particular social value) to maintain the quality of life on earth. In short, a more sustainable and environmental friendly...

QTL Analysis for MAS

Breeding objectives always involve consideration of multiple traits, even in situations where output of a single feature is dominant. While animal breeders have formalized the procedure of multiple trait selection, commercial plant breeders use non-formal ways of combining selection pressure on various traits, which are not published (Solkner et al. 2008). The longer generation intervals and, more importantly, the lower reproductive rates of animals emphasize procedures of simultaneous...

An Example of QTL Analyses for Utilization of Wild Species to Increase Salt Tolerance in Tomato

Tomato is one of the most important horticultural crops. In terms of human health, tomato fruit is a major component of daily meals in many countries and constitutes an important source of minerals, vitamins, and antioxidant compounds. However the areas for tomato optimal growing conditions are becoming narrower around the world. About 20 of irrigated agricultural land and 2 of dry land agriculture are affected by salinity (Yeo et al. 1999). Since salt tolerance, such as tolerance to any...

Transition in Concept from Wet to Dry

Many foundations of biostatistics are rooted in agricultural sciences, particularly agricultural genetics. Exponentially-growing quantities of DNA sequence, gene expression, nucleotide variation and other genetic and genomic data have compelled researchers to add new dimensions to systems for analyzing the data. Indeed, the availability of enormous data sets via the internet, and their comparison in novel ways, has led to the birth of a new discipline, bioinformatics, transitioning away from...

Polyploidy Evolution of New Genomes

Polyploidy has contributed significantly to enhancing the productivity of plant taxa such as cotton, wheat, sugarcane, oat, soybean, peanut, canola, tobacco, coffee, and banana. The increase in genomic content of nuclei either brought about through whole genome duplication or polyploidy uniting of two genomes in one nucleus , followed by extensive chromosome restructuring Brubaker et al. 1999 possibly through retrotransposon activity Zhao et al. 1998 , is one of the major causes of deviating...